/* ====== Course Detail Page Styles ====== */

/* Breadcrumb */
.breadcrumb { padding: 24px 0 0; font-size: 13px; color: var(--muted); }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { margin: 0 8px; opacity: .5; }

/* Course Hero */
.course-hero { padding: 32px 0 48px; }
.course-hero-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; align-items: start; }
.course-hero h1 { font-size: 38px; line-height: 1.2; margin: 14px 0 18px; font-weight: 800; letter-spacing: -.01em; }
.course-hero .eyebrow-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 6px; }
.course-hero .eyebrow-tag { display: inline-block; padding: 3px 12px; border-radius: 20px; font-size: 13px; font-weight: 600; background: rgba(124,92,255,0.12); color: var(--accent); }
.course-hero .eyebrow-update { font-size: 13px; color: var(--muted); }
.course-hero .meta-row { display: flex; gap: 18px; flex-wrap: wrap; color: var(--muted); font-size: 14px; margin-bottom: 20px; }
.course-hero .meta-row span { display: flex; align-items: center; gap: 6px; }
.course-hero .summary { color: var(--text); font-size: 16px; line-height: 1.75; margin: 0 0 24px; }
.course-hero .highlights { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 10px 18px; }
.course-hero .highlights li { display: flex; gap: 8px; align-items: flex-start; font-size: 14px; color: var(--text); }
.course-hero .highlights li::before { content: "✓"; color: var(--success); font-weight: 700; flex-shrink: 0; }

/* Learning Objectives */
.course-objectives { background: rgba(124,92,255,0.06); border: 1px solid rgba(124,92,255,0.15); border-radius: 10px; padding: 20px 22px; margin-bottom: 6px; }
.objectives-intro { font-size: 14px; color: var(--muted); margin: 0 0 12px; }
.objectives-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.objectives-list li { display: flex; gap: 10px; font-size: 14px; color: var(--text); line-height: 1.5; }
.objectives-list li::before { content: "✔"; color: var(--success); font-weight: 700; flex-shrink: 0; margin-top: 1px; }

/* Buy Card */
.buy-card {
  background: linear-gradient(160deg, var(--card), var(--bg-2));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px; box-shadow: var(--shadow);
  position: sticky; top: 80px;
}
.buy-card .buy-card-label {
  display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .05em;
  text-transform: uppercase; color: var(--accent);
  background: rgba(124,92,255,0.12); padding: 3px 10px; border-radius: 4px;
  margin-bottom: 12px;
}
.buy-xhs-note {
  margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--border);
  text-align: center;
}
.buy-xhs-note p { margin: 0; font-size: 14px; color: var(--text); }
.buy-card .video {
  width: 100%; aspect-ratio: 16/9;
  background: linear-gradient(135deg, rgba(124,92,255,.2), rgba(34,211,238,.15));
  border-radius: 10px; display: grid; place-items: center;
  font-size: 56px; margin-bottom: 18px; cursor: pointer;
  position: relative; overflow: hidden;
}
.buy-card .video::after {
  content: "▶"; position: absolute; inset: 0; display: grid; place-items: center;
  width: 64px; height: 64px; border-radius: 50%;
  background: rgba(124,92,255,.95); color: #fff; font-size: 22px;
  margin: auto; box-shadow: 0 8px 24px rgba(0,0,0,.4);
}
.buy-card .video:hover::after { transform: scale(1.08); }
.buy-card .price-row { display: flex; align-items: baseline; gap: 12px; margin: 14px 0 18px; }
.buy-card .price-now { font-size: 34px; font-weight: 800; color: var(--gold); }
.buy-card .price-old { color: var(--muted); text-decoration: line-through; }
.buy-card .guarantee { display: flex; gap: 12px; margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--border); font-size: 13px; color: var(--muted); flex-wrap: wrap; }
.buy-card .guarantee .item { display: flex; gap: 6px; align-items: center; }
.buy-card .guarantee .check { color: var(--success); }

@media (max-width: 900px) {
  .course-hero { padding: 24px 0 36px; }
  .course-hero-grid { grid-template-columns: 1fr; gap: 28px; }
  .course-hero h1 { font-size: 28px; }
  .course-hero .highlights { grid-template-columns: 1fr; }
  .buy-card { position: static; }
}

/* Tabs */
.tabs { display: flex; gap: 6px; border-bottom: 1px solid var(--border); margin-bottom: 24px; overflow-x: auto; }
.tab {
  background: transparent; border: 0; color: var(--muted);
  padding: 12px 20px; font-size: 15px; font-weight: 600;
  cursor: pointer; border-bottom: 2px solid transparent;
  white-space: nowrap; transition: all .2s;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* Syllabus */
.syllabus { display: flex; flex-direction: column; gap: 12px; }
.module {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
}
.module-header {
  padding: 18px 22px; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.module-header:hover { background: rgba(124,92,255,.04); }
.module-title { font-weight: 600; font-size: 16px; display: flex; gap: 12px; align-items: center; }
.module-num {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; width: 32px; height: 32px; border-radius: 8px;
  display: grid; place-items: center; font-size: 14px; font-weight: 700; flex-shrink: 0;
}
.module-meta { color: var(--muted); font-size: 13px; }
.module-body { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.module-body-inner { padding: 0 22px 20px; }
.module.open .module-body { max-height: 1200px; }
.module.open .module-toggle { transform: rotate(45deg); }
.module-toggle { color: var(--primary); font-size: 22px; transition: transform .2s; }
.lesson-list { list-style: none; padding: 0; margin: 0; }
.lesson-list li { padding: 10px 0; display: flex; justify-content: space-between; gap: 14px; border-top: 1px dashed var(--border); font-size: 14px; color: var(--muted); }
.lesson-list li:first-child { border-top: 0; }
.lesson-list .lesson-title { color: var(--text); display: flex; gap: 10px; align-items: flex-start; }
.lesson-list .lesson-title::before { content: "▸"; color: var(--accent); flex-shrink: 0; margin-top: 2px; }
.lesson-list .lesson-time { color: var(--muted); font-size: 13px; flex-shrink: 0; }

/* Audience / Outcomes */
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.info-block {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px;
}
.info-block h3 { margin: 0 0 14px; font-size: 18px; display: flex; gap: 10px; align-items: center; }
.info-block h3 .ico { font-size: 22px; }
.info-block ul { list-style: none; padding: 0; margin: 0; }
.info-block ul li { padding: 8px 0; display: flex; gap: 10px; font-size: 14px; color: var(--text); }
.info-block ul li::before { content: "→"; color: var(--primary); }
@media (max-width: 720px) { .info-grid { grid-template-columns: 1fr; } }

/* Mentor block on course page */
.mentor-mini {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px;
  display: grid; grid-template-columns: 100px 1fr; gap: 20px; align-items: center;
}
.mentor-mini .ava {
  width: 100px; height: 100px; border-radius: 12px;
  background: linear-gradient(135deg, #7c5cff, #22d3ee);
  display: grid; place-items: center; font-size: 44px;
}
.mentor-mini h4 { margin: 0 0 6px; font-size: 18px; }
.mentor-mini p { margin: 0; color: var(--muted); font-size: 14px; }
@media (max-width: 720px) { .mentor-mini { grid-template-columns: 1fr; text-align: center; } .mentor-mini .ava { margin: 0 auto; } }